When Chinese people talk about American cities, the first es into their minds is San Francisco.
A. city
B. one
C. that
D. of them
网友回答
A. city
B. one
(答案→)C. that
D. of them
解析：考查定语从句。本题的先行词是the first，定语从句中缺少主语，故使用that引导序数词或者由序数词修饰的先行词。句意：当中国人谈论美国的城市的时候，进入他们脑海的第一个城市就是旧金山。故C正确。